Three went in. Three came out. None even a shadow of who they once were.

When
their car breaks down, Dee, her boyfriend Luke, and his brother Mike
walk through a winter storm to take refuge in a nearby town called
Purity Springs. When they arrive, the emergency sirens are blaring and
the small farming town seems abandoned. With no other shelter, they
spend the night in an empty house.

But they soon discover that
not everything in Purity Springs is as it seems. When the town's
inhabitants suddenly appear the next morning, Dee, Luke, and Mike find
themselves at the mercy of the charismatic leader, Elijah Hawkins, who
plans to make Dee his new wife. Elijah's son, Joseph, offers to help
them escape . . . but the price of his help may be more than Dee and her
friends can bear.